JP4200003B2 - Metering valve - Google Patents

Metering valve Download PDF

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Publication number
JP4200003B2
JP4200003B2 JP2002544521A JP2002544521A JP4200003B2 JP 4200003 B2 JP4200003 B2 JP 4200003B2 JP 2002544521 A JP2002544521 A JP 2002544521A JP 2002544521 A JP2002544521 A JP 2002544521A JP 4200003 B2 JP4200003 B2 JP 4200003B2
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Japan
Prior art keywords
valve
metering
working chamber
valve body
pipe
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Expired - Fee Related
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JP2002544521A
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JP2004514821A (en
Inventor
フーバー スヴェン
マイアー ハンスペーター
メル アレキサンダー
ミュラー ゲルハルト
オッフェンフーバー ミヒャエル
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Description

【０００１】
本発明は、請求項１の上位概念に記載の形式の弁装置に関する。
【０００２】
技術背景
ドイツ連邦共和国特許出願公開第１００４０５７１．１号明細書により、還元剤の調量のための調量弁が公知であり、この場合、液状の還元剤が弁の作業室を通して導かれるようになっており、作業室が一定の容積を有している。
【０００３】
発明の利点
請求項１に記載の特徴を有する本発明に基づく弁装置においては利点として、特に車両での使用に際して液体の需要に合った調量が行われ、該弁装置が液体の起こりうる氷結の際に破損することもない。弁装置が、氷結によって生じた氷の溶けた後には再び完全に機能し、かつ氷結の繰り返しにも耐えうるものである。弁座、並びにシール、或いはマグネットコイルのための注型成形物質が無傷のままであり、液体案内の管路が変形しない。特に水溶液を用いる場合に、本発明に基づく構成は氷結圧に耐える装置を提供し、該装置は簡単な改造によって標準弁、例えば乗用車用ガソリン若しくはガス調量弁として形成され得る。特に内燃機関の排ガスの後処理用の尿素調量機構のために、本発明に基づく装置は有利に用いられる。圧力下で後退若しくは変位する部材を用いることによって、高い圧力の発生が避けられ、従って、耐圧性の低い材料及び構成部分が用いられ得る。
【０００４】
従属請求項に本発明の有利な実施態様が記載してある。ダイヤフラムによって形成されていてガスの満たされた缶形部材、弾性的な成形管部分若しくは圧縮可能な弾性的なホースを設けると有利であり、これらの部材を用いて、既存のノズル装置が、長さ若しくは液体入口の配置位置に左右されることなく変更され得る。
【０００５】
弁を運動可能に支承することによって、弁の補償運動が、弁の出口に接続する液体案内のための管路の保護のために可能になる。
【０００６】
実施例の説明
図１に示す弁装置の弁体（３，１８，１９）は、マグネットコイル４を備えるコイル部分３、作業室１０を取り囲む作業室部分１８、並びに入口及び出口領域１９から成っている。弁体はマグネット弁ホルダー２の開口内に収容されていて、ばね弾性的な板状の締め付け部材１５を用いて固定されている。この場合、弁体がエラストマシールリング１６を介して管路１７の壁部２０に取り付けられている。弁体の作業室への側方の入口１１がマグネット弁ホルダー２内に組み込まれている。管路１７に対する密閉がエラストマシールリング１６を介して行われており、マグネット弁ホルダー内のスペースに対する密閉がＯリングシール５を介して保証されており、該Ｏリングシールがほぼマグネットコイル４の高さでコイル部分３の周囲を密接に取り囲んでいる。入口１１が作業室１０に通じており、作業室内に弁プレート６が運動可能に支承されている。弁プレートがマグネットコイル４への電流の印加によって流出開口９から持ち上げられて、作業室１０内の流体に対して出口領域１２及び管路１７内への流路を開放する。流出開口９が弁座８内に孔として形成されており、該孔が孔自体の直径よりも大きな直径の出口領域１２内へ移行している。作業室内に、ガスの満たされた缶形部材７を配置してあり、該缶形部材が回転対称的に弁座の周囲、及び弁プレートの、流出開口９を被う部分の周囲に配置されている。この場合、缶形部材が弁体の作業室部分１８のかしめ部１３によって固定されている。弁体のコイル部分３と作業室部分１８との間に配置されたシール１４がマグネットコイル４を弁装置の残りの部分に対して液密に閉鎖している。
【０００７】
前述の弁装置は特に、運転温度の低い場合に管路若しくは弁装置内で氷結するおそれのある水溶液の調量に適している。入口若しくは作業室で水溶液、例えば尿素・水・溶液が氷結する場合には、ガスの満たされた缶形部材が圧縮されて、水溶液のため、若しくは水溶液の固相のために十分な容積が生ぜしめられる。この場合、缶形部材は、数バール、例えば３バールの液体圧では変形を生ぜしめないように形成されている。水溶液の氷結の際に生じる著しい圧力、例えば１０００バールでようやく缶形部材が圧縮され、その結果、氷結された水溶液の増大された作業室容積が得られる。水溶液の氷結によって生じた氷の溶ける際に、缶形部材の変形が圧力減少に相応して戻り、最終的に再び出発状態が達成されて、缶形部材が再度の氷結の際の圧力逃がしのために待機している。出口領域１２若しくは管路内で水溶液が凍る場合にも、補償機能が生ぜしめられる。形成される氷の体積膨張によって生じる氷圧力が、弁体をばね弾性的な締め付け部材１５に向けて押圧し、締め付け部材が変位し、即ちたわんで、弁体を軸線方向で締め付け部材に向けて運動させる。これによって、出口領域１２内の液体にとって有効な容積が増大される。締め付け部材のばね力が、一方では弁体の移動によって十分な圧力降下を保証して、その結果、氷圧力による管路及び弁装置の損傷を避け、かつ他方ではエラストマシールリング１６を介して弁体を管路１７に密に接触させているように規定されている。氷が溶けると、缶形部材も締め付け部材１５も弛緩して、水溶液の再度の氷結に際して同様に補償機構として役立つようになる。ばね弾性的な缶形部材並びに締め付け部材１５が、氷圧力を不都合のない程度に制限し、即ち、変形が可逆的であってかつ、このために特別に設けられた部材、まさに締め付け部材１５及び缶形部材７に限定される。
【０００８】
図２に示すマグネット弁は、完全に、段階的な複数の直径を有する中央の孔２２だけを通して流過されるようになっている。マグネット弁のケーシング２１内にマグネットコイル３５が組み込まれており、該マグネットコイルによって、ばね３４の圧縮力と逆向きの力が弁プレート６６に生ぜしめられて、弾性的に支承されたノズルプレート３１のノズル孔９９が、孔２２内の液体のために開放される。ノズルプレート３１が、ケーシング２１とノズルプレート３１との間に締め込まれた皿ばね３２を用いて固定されている。Ｏリングシール３３がノズルプレートをケーシングに対して密閉している。孔２２の一部分が圧縮可能な弾性的なホース２８によって被われている。ホースがセルラーラバーから若しくはクローズドセル質又は発泡性のサーモプラスチックから成っていて、圧縮した状態で組み込まれて、膨張に基づき孔２２の壁２９に固着される。さらに孔２２内に長手方向及び横方向に弾性的な成形管部分２３が組み込まれており、これによって成形管部分とケーシング壁２５との間に、空気の満たされた補償容積２６が生ぜしめるられている。圧入されたプレート２７が成形管部分を軸線方向で固定しており、Ｏリングシール２４が補償容積２６内への液体の侵入を阻止している。
【０００９】
水溶液がマグネット弁の孔２２内で凍った場合に、異なる３つの機構が補償容積の形成に役立つ。弾性的な成形管部分２３が補償容積２６を活用して、孔内の氷圧力の発生に際して液体のために容積を増大するように機能する。同じく、圧縮可能なホースが氷結に基づく体積増大の補償のために寄与する。成形管部分及び圧縮可能なホースと同じく、皿ばね３２も、氷圧力の発生の際にのみ顕著にたわみ、これによってノズルプレート３１を移動させてマグネット弁の損傷を防止するように形成されている。数バールの大きさである通常の運転圧力では、成形管部分、ホース２８並びにノズルプレート３１は実質的に出発状態を維持している。これらの部材も、該部材の氷圧力で生じた変形が氷の溶けた後には再び完全に元に戻るように形成されている。
【図面の簡単な説明】
【図１】 側方の液体入口を備えた弁装置の縦断面図。
【図２】 軸線方向に貫流される弁装置の縦断面図。
【符号の説明】
２ マグネット弁ホルダー、 ３ コイル部分、 ４ マグネットコイル、 ５ Ｏリングシール、 ６ 弁プレート、 ７ 缶形部材、 ９ 流出開口、 １０ 作業室、 １１ 入口、 １２ 出口領域、 １５ 締め付け部材、 １６ エラストマシールリング、 １７ 管路、 １８ 作業室部分、 １９ 入口及び出口領域、 ２０ 壁部、 ２１ ケーシング、 ２２ 孔、 ２４ Ｏリングシール、 ２７ プレート、 ２９ 壁、 ３１ ノズルプレート、 ３４ ばね、 ３５ マグネットコイル、 ６６ 弁プレート、 ９９ ノズル孔[0001]
The invention relates to a valve device of the type described in the superordinate concept of claim 1.
[0002]
BACKGROUND OF THE INVENTION A metering valve for metering a reducing agent is known from German Offenlegungsschrift DE 100 40 571.1, in which case a liquid reducing agent is led through the working chamber of the valve. The working chamber has a certain volume.
[0003]
Advantages of the Invention The valve device according to the invention having the features of claim 1 has the advantage that metering is performed to meet the liquid demand, especially when used in vehicles, and the valve device is capable of freezing of liquid. There is no damage in the case of. The valve device is fully functional again after melting of the ice produced by freezing and can withstand repeated freezing. The casting material for the valve seat, as well as the seal or magnet coil remains intact and the liquid guide conduit does not deform. In particular when using aqueous solutions, the arrangement according to the invention provides a device that can withstand freezing pressure, which can be formed as a standard valve, for example a gasoline or gas metering valve for passenger cars, with a simple modification. The device according to the invention is advantageously used especially for urea metering mechanisms for the aftertreatment of exhaust gases from internal combustion engines. By using a member that retreats or displaces under pressure, the generation of high pressure is avoided, and therefore materials and components with low pressure resistance can be used.
[0004]
Advantageous embodiments of the invention are described in the dependent claims. It is advantageous to provide a can-shaped member which is formed by a diaphragm and is filled with gas, an elastic molded tube part or a compressible elastic hose, with which the existing nozzle device can Alternatively, it can be changed without depending on the position of the liquid inlet.
[0005]
By movably supporting the valve, compensation movement of the valve is possible for the protection of the conduit for the liquid guide connected to the outlet of the valve.
[0006]
Description of Embodiments The valve body (3, 18, 19) of the valve device shown in FIG. 1 includes a coil portion 3 including a magnet coil 4, a work chamber portion 18 surrounding the work chamber 10, and an inlet and outlet region 19. Yes. The valve element is accommodated in the opening of the magnet valve holder 2 and is fixed by using a spring-elastic plate-like fastening member 15. In this case, the valve body is attached to the wall portion 20 of the pipe line 17 via the elastomer seal ring 16. A side inlet 11 to the working chamber of the valve body is incorporated in the magnet valve holder 2. Sealing with respect to the pipe line 17 is performed via the elastomer seal ring 16, and sealing with respect to the space in the magnet valve holder is ensured via the O-ring seal 5, and the O-ring seal is almost the height of the magnet coil 4. The coil portion 3 is thus closely surrounded. An inlet 11 communicates with the work chamber 10, and a valve plate 6 is supported in the work chamber so as to be movable. The valve plate is lifted from the outflow opening 9 by the application of current to the magnet coil 4 to open the flow path to the outlet region 12 and the conduit 17 for the fluid in the working chamber 10. An outflow opening 9 is formed as a hole in the valve seat 8, and the hole transitions into an outlet region 12 having a diameter larger than the diameter of the hole itself. The working chamber, Yes to place Kangata member 7 filled with a gas, said Kangata member is disposed around the portion that covers the periphery of the rotary symmetrical valve seat, and the valve plate, the outlet openings 9 ing. In this case, the can- shaped member is fixed by the caulking portion 13 of the working chamber portion 18 of the valve body. A seal 14 disposed between the coil portion 3 of the valve body and the working chamber portion 18 closes the magnet coil 4 in a liquid-tight manner with respect to the remaining portion of the valve device.
[0007]
The aforementioned valve device is particularly suitable for metering aqueous solutions that may freeze in pipes or valve devices when the operating temperature is low. When an aqueous solution, such as urea, water, or a solution, freezes at the entrance or working chamber, the can-filled member filled with gas is compressed to create sufficient volume for the aqueous solution or for the solid phase of the aqueous solution. Squeezed. In this case, the can- shaped member is formed so as not to cause deformation at a liquid pressure of a few bar, for example 3 bar. The canned element is finally compressed at the significant pressure generated during freezing of the aqueous solution, for example 1000 bar, resulting in an increased working chamber volume of the frozen aqueous solution. When the ice formed by the freezing of the aqueous solution melts, the deformation of the can- shaped member returns corresponding to the pressure decrease, and finally the starting state is achieved again, so that the can- shaped member can be relieved of pressure during freezing. Waiting for. A compensation function is also produced when the aqueous solution freezes in the outlet region 12 or in the pipeline. The ice pressure generated by the volume expansion of the formed ice presses the valve body toward the spring-elastic clamping member 15, and the clamping member is displaced, that is, bent, and the valve body is directed axially toward the clamping member. Exercise. This increases the effective volume for the liquid in the outlet region 12. The spring force of the clamping member ensures on the one hand a sufficient pressure drop by the movement of the valve body, so that damage to the conduit and the valve device due to ice pressure is avoided, and on the other hand the valve via the elastomer seal ring 16. It is defined that the body is in close contact with the conduit 17. When the ice melts, both the can- shaped member and the fastening member 15 are relaxed and serve as a compensation mechanism when the aqueous solution is frozen again. The spring-elastic can- shaped member and the clamping member 15 limit the ice pressure to an inconvenient level, i.e. a member that is reversible and is specially provided for this purpose, just the clamping member 15 and It is limited to the can- shaped member 7.
[0008]
The magnet valve shown in FIG. 2 is completely passed through only a central hole 22 having a plurality of stepped diameters. A magnet coil 35 is incorporated in the casing 21 of the magnet valve, and a force opposite to the compression force of the spring 34 is generated in the valve plate 66 by the magnet coil, and the nozzle plate 31 is elastically supported. Nozzle holes 99 are opened for liquid in the holes 22. The nozzle plate 31 is fixed using a disc spring 32 fastened between the casing 21 and the nozzle plate 31. An O-ring seal 33 seals the nozzle plate against the casing. A portion of the hole 22 is covered by a compressible elastic hose 28. The hose is made of cellular rubber or closed cellular or foamable thermoplastic and is assembled in a compressed state and secured to the wall 29 of the hole 22 based on expansion. Furthermore, a longitudinally and laterally elastic shaped tube part 23 is incorporated in the bore 22, which creates a compensation volume 26 filled with air between the shaped tube part and the casing wall 25. ing. The press-fitted plate 27 fixes the formed tube portion in the axial direction, and the O-ring seal 24 prevents liquid from entering the compensation volume 26.
[0009]
When the aqueous solution freezes in the hole 22 of the magnet valve, three different mechanisms help to create the compensation volume. Elastic shaped tube section 23 utilizes compensation volume 26 to function to increase the volume for the liquid upon generation of ice pressure in the hole. Similarly, a compressible hose contributes to compensate for the increase in volume due to freezing. Like the shaped tube portion and the compressible hose, the disc spring 32 is formed so as to bend significantly only when the ice pressure is generated, thereby moving the nozzle plate 31 to prevent the magnet valve from being damaged. . At normal operating pressures of several bars, the molded tube section, hose 28 and nozzle plate 31 remain substantially in the starting state. These members are also formed so that the deformation caused by the ice pressure of the members is completely restored again after the ice melts.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a valve device with a lateral liquid inlet.
FIG. 2 is a longitudinal sectional view of a valve device that flows in an axial direction.
[Explanation of symbols]
2 Magnet valve holder, 3 Coil part, 4 Magnet coil, 5 O-ring seal, 6 Valve plate, 7 Can-shaped member , 9 Outflow opening, 10 Working chamber, 11 Inlet, 12 Outlet area, 15 Tightening member , 16 Elastomer seal ring , 17 pipe line, 18 working chamber part, 19 inlet and outlet area, 20 wall part, 21 casing, 22 hole, 24 O-ring seal, 27 plate, 29 wall, 31 nozzle plate, 34 spring, 35 magnet coil, 66 valve Plate, 99 nozzle holes

Claims (8)

液体の調量のための弁装置であって、作業室（１０；２２）を備えた弁体（３，１８，１９）を有しており、作業室内に弁プレート（６；６６）が作業室の流出開口（９；９９）の開閉のために運動可能に支承されている形式のものにおいて、弁体（３，１８，１９）が弁ホルダー（２）を用いて運動可能に支承され、かつ管路（１７）に結合されていて、管路（１７）内の液体の氷結の際に管路容積の増大のための補償運動を行うようになっており、管路（１７）と弁体（３，１８，１９）との間にシールリングを配置してあり、該シールリングは、管路（１７）内の液体が氷結温度よりも高い状態にある場合にも氷結した状態にある場合にも、管路（１７）への弁体（３，１８，１９）の液密な接触を保証していることを特徴とする調量弁。A valve device for metering liquid, comprising a valve body (3, 18, 19) provided with a working chamber (10; 22), and a valve plate (6; 66) in the working chamber. In the type that is movably supported for opening and closing the outflow opening (9; 99) of the working chamber, the valve body (3, 18, 19) is movably supported using the valve holder (2). And is connected to the pipe (17) so as to perform a compensating motion for increasing the pipe volume when the liquid in the pipe (17) is frozen, and the pipe (17) A seal ring is disposed between the valve body (3, 18, 19), and the seal ring is frozen even when the liquid in the pipe line (17) is higher than the freezing temperature. In some cases, the metering is characterized by ensuring liquid-tight contact of the valve body (3, 18, 19) with the pipe line (17). valve. 弁ホルダー（２）に取り付けられたばね部材が、管路（１７）内の氷結で生じた氷の溶解に際して弁体（３，１８，１９）を管路（１７）に向けて押し戻すようになっている請求項１記載の調量弁。The spring member attached to the valve holder (2) pushes back the valve body (3, 18, 19) toward the pipe line (17) when the ice formed by freezing in the pipe line (17) melts. The metering valve according to claim 1 . ばね部材が、ばね弾性的な板状の締め付け部材（１５）である請求項２記載の調量弁。 3. The metering valve according to claim 2 , wherein the spring member is a spring-elastic plate-like fastening member (15). 弁体（３，１８，１９）が弁ホルダー（２）の開口内に挿入されて、弁体（３，１８，１９）の、流出開口（９）と逆の側でばね部材（１５）によって固定されており、これによって補償運動が軸線方向に行われるようになっている請求項２又は３記載の調量弁。The valve body (3, 18, 19) is inserted into the opening of the valve holder (2) and is moved by the spring member (15) on the side of the valve body (3, 18, 19) opposite to the outflow opening (9). 4. The metering valve according to claim 2 , wherein the metering valve is fixed so that compensation movement is performed in the axial direction. 作業室（１０；２２）への側方の入口（１１）が弁ホルダー（２）に設けられている請求項４記載の調量弁。5. The metering valve according to claim 4 , wherein a side inlet (11 ) to the working chamber (10; 22) is provided in the valve holder (2). 作業室（１０）が、圧縮可能な少なくとも１つの部材（７）を含んでおり、これによって、弁装置内の液体が相変態を行う場合に、作業室（１０）の容積が変化せしめられるようになっている請求項１から５のいずれか１項記載の調量弁。 The working chamber (10) includes at least one compressible member (7) so that the volume of the working chamber (10) can be changed when the liquid in the valve device undergoes a phase transformation. metering valve according to any one of from and claim 1 is five. 圧縮可能な部材（７）が、ダイヤフラムによって形成されていてガスの満たされた缶形部材である請求項６記載の調量弁。Compressible member (7) is, metering valve according to claim 6, wherein it is formed by a diaphragm which is Kangata member filled with gas. 管路（１７）と弁体（３，１８，１９）との間に配置されたシールリングが、エラストマシールリング（１６）である請求項１から５のいずれか１項記載の調量弁。 It arranged sealing rings between the pipe (17) a valve body (3, 18, 19) is a metering valve of any one of claims 1 5 is an elastomer sealing ring (16).
JP2002544521A 2000-11-23 2001-11-21 Metering valve Expired - Fee Related JP4200003B2 (en)

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DE10058015A DE10058015A1 (en) 2000-11-23 2000-11-23 metering valve
PCT/DE2001/004406 WO2002042616A1 (en) 2000-11-23 2001-11-21 Metering valve

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EP1339956B1 (en) 2007-08-08
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